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Clean Water Act › Supreme Court of the United States

The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to... more +
The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to accomplish its stated goals by preventing point and nonpoint pollution sources, assisting wastewater treatment facilities and maintaining wetlands. less -
ArentFox Schiff

Top 3 Supreme Court Environmental and Administrative Trends of 2025

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Within this term, the US Supreme Court’s major environmental and administrative focus was on statutory text in its environmental and administrative decisions....more

McGlinchey Stafford

Supreme Court’s Cert Denials Pave Way for Surge in Environmental Citizen Suits

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In a significant victory for environmental advocacy groups, the Supreme Court’s refusal on June 30, 2025 to grant certiorari in two pivotal cases (Port of Tacoma, et al. v. Puget Soundkeeper Alliance and ExxonMobil Corp., et...more

Womble Bond Dickinson

United States Supreme Court Administrative Law Decisions of Note During the 2024-2025 Term

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In this update, we cover the most impactful Supreme Court cases related to administrative law issues decided during the 2024-2025 term. The Supreme Court decided important administrative law cases falling into these general...more

Tonkon Torp LLP

U.S. Supreme Court Limits EPA Discretion in Landmark NPDES Permit Decision

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The Supreme Court’s recent decision in City and County of San Francisco v. Environmental Protection Agency, (EPA) 604 U.S. ____ (2025) significantly alters the regulatory landscape for NPDES permits under the Clean Water Act...more

K&L Gates LLP

Course Correction: Supreme Court Steers Toward Greater Predictability in NEPA Reviews

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On 29 May 2025, the Supreme Court unanimously declared that a “course correction” was needed for cases under the National Environmental Policy Act (NEPA), holding that a law originally meant to be a procedural check to inform...more

Allen Matkins

California Environmental Law & Policy Update 6.6.25

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On May 29, 2025, the Supreme Court held that the National Environmental Policy Act (NEPA) — which requires federal agencies to analyze the environmental impacts of projects that they perform, fund, or approve — does not...more

Greenberg Glusker LLP

Supreme Court Narrows EPA’s Authority to Set Limitations in Clean Water Act Permits

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On March 4, 2025, the Supreme Court issued its opinion in City and County of San Francisco v. Environmental Protection Agency, holding that EPA does not have the authority to issue “end-result” requirements in National...more

Nossaman LLP

The End of “End-Result” Permit Limitations in Clean Water Act Permits

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On March 4, 2025, the U.S. Supreme Court issued its opinion in the case City and County of San Francisco v. Environmental Protection Agency, in which it held that “end-result” requirements routinely imposed by the U.S....more

Beveridge & Diamond PC

Clean Water Act Citizen Suits in the Spotlight: Solicitor General Calls for Supreme Court Review

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Key Takeaways - Federal citizen suits are likely to become more frequent as the federal government decreases its enforcement efforts. Federal courts are split on whether Clean Water Act (CWA) citizen suits can enforce...more

Nossaman LLP

Rewriting the Rules: The Supreme Court's Landmark Decision on Clean Water Act Permits

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In this episode of Digging Into Land Use Law, Byron Gee, Willis Hon and Sara Johnson review in detail the recent Supreme Court opinion in City and County of San Francisco vs. EPA and its implications for Clean Water Act...more

Beveridge & Diamond PC

One of EPA’s First Attempts to Implement San Franscico v. EPA: Modifications to EPA’s 2022 Construction General Permit

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Key Takeaways - What Happened? The U.S. Environmental Protection Agency (EPA) issued a final modification to its 2022 Construction General Permit (CGP) to expand the list of areas eligible for coverage to include...more

Latham & Watkins LLP

Trump Administration Pursues Deregulation in a Trio of Orders

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The orders span various sectors and aim to introduce sunset provisions into regulations and eliminate regulations deemed unlawful or anti-competitive....more

Bricker Graydon LLP

Supreme Court Limits EPA Permitting Authority in City and County of San Fran v. US EPA

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On March 4, 2025, the U.S. Supreme Court issued a 5-4 opinion in City and County of San Francisco v. Environmental Protection Agency, holding that “end-result” requirements routinely imposed by the EPA in NPDES permits issued...more

Troutman Pepper Locke

White House Issues Memorandum Directing Federal Agencies to Repeal Regulations Deemed to be Unlawful Pursuant to Recent U.S....

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On April 9, the White House issued a memorandum directing federal executive departments and agencies to repeal regulations deemed unlawful pursuant to certain U.S. Supreme Court decisions. This directive aims to address...more

Clark Hill PLC

Administrative Law Report - April 2025, Vol. 6

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Welcome to your monthly rundown of all things administrative law, where we highlight all the happenings you may have missed. ...more

Williams Mullen

Clean Water Act: The End of “End-Result” Permitting

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The Supreme Court of the United States’ recent Clean Water Act decision in City of San Francisco v. EPA has sent shockwaves through the environmental community by prohibiting EPA and state agencies’ common practice of...more

Dickinson Wright

Supreme Court Limits EPA's Power Over NPDES Water Permits

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In a much-anticipated decision, the U.S. Supreme Court significantly narrowed the EPA's authority under the Clean Water Act (CWA) to impose so-called "end-result" requirements in NPDES permits. These "end-result" requirements...more

Womble Bond Dickinson

Nondelegation and Environmental Law - March 2025

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Last week, the Supreme Court held oral argument in Federal Communications Commission v. Consumers’ Research. The case addresses the Federal Communications Commission’s Universal Service Fund programs aimed at providing...more

Brownstein Hyatt Farber Schreck

On WOTUS Notice: EPA Gives Notice of Yet Another Clean Water Act Rule

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The Agency Is Looking to Sackett v. EPA for a More ‘Durable’ Definition - From Obama to Trump to Biden, each of the last three administrations has directed the United States Environmental Protection Agency (“EPA”) to...more

Morris, Manning & Martin, LLP

Corps and EPA Rescind Biden Wetland Guidance – Move to Revise “Waters of the United States” Definition

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On March 12, 2025, the U.S. Army Corps of Engineers and the U.S. Environmental Protection Agency issued a Federal Register notice stating their intent to review the definition of “waters of the United States” (“WOTUS”), which...more

Beveridge & Diamond PC

B&D, City and County of San Francisco Secure U.S. Supreme Court Win on Major Clean Water Act Issue

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On March 4, the City and County of San Francisco and a Beveridge & Diamond (B&D) team led by Principal Drew Silton (Washington, DC), secured a significant victory in the U.S. Supreme Court in City and County of San Francisco...more

Best Best & Krieger LLP

EPA Seeks Public Input on WOTUS Implementation Post-Sackett Ruling

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On March 24, 2025, the Environmental Protection Agency (EPA) published plans to seek stakeholder input on implementing a new definition of “waters of the United States” (WOTUS) under the Clean Water Act (CWA). The EPA’s goal...more

Nossaman LLP

Corps Permitting Developments Under a Second Trump Term

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Just two months into President Trump’s second term, project applicants are navigating a series of changes to U.S. Army Corps of Engineers’ (Corps) Clean Water Act (CWA) Section 404 permitting. Upon his inauguration, President...more

Goldberg Segalla

New Guidance for Defining the ‘Waters of the United States’

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The Environmental Protection Agency announced March 10 it will be revising the definition for the Waters of the United States Rule (WOTUS). In a news release it said, “[t]he agencies will move quickly to ensure that a revised...more

Latham & Watkins LLP

Supreme Court Waves Goodbye to Clean Water Act End-Result Requirements

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The landmark decision alters the NPDES permit landscape, shifting the focus to specific actions over general outcomes....more

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